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Dominant family

A dominant thirteenth chord

A13

A dominant thirteenth

Piano root position

  • Root
  • 3
  • 5
  • ♭7
  • 9
  • 13

Guitar standard tuning

Fret 5

No barre: each note has its own finger.

EA×DGBe×56789AGC♯F♯

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞♯♯

Intervals

12 semitones
  1. A1
  2. ♭2
  3. B9
  4. ♭3
  5. C♯3
  6. 4
  7. ♭5
  8. E5
  9. ♯5
  10. F♯13
  11. G♭7
  12. 7
  • A Root
  • C♯ Major 3rd
  • E Perfect 5th
  • G Minor 7th
  • B Major 9th
  • F♯ Major 13th

About this chord

What is an A dominant thirteenth chord?

A13 is built from 6 notes: A (the root), C♯ (the 3), E (the 5), G (the ♭7), B (the 9), F♯ (the 13). The richest dominant: a big-band sound. The fifth and ninth are often left out when it is played.

Notes
A · C♯ · E · G · B · F♯
Formula
1 · 3 · 5 · ♭7 · 9 · 13
Also written
Adom13
Found in
Outside the major and minor keys

Neighbours

Chords close to A13

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